Results 241 to 250 of about 20,809 (282)
Some of the next articles are maybe not open access.
Diagnosis of rhinosinusitis with a colorimetric sensor array
Journal of Breath Research, 2008A variety of electronic nose technologies are currently commercially available or under evaluation at research institutions. Sensors include conducting polymers, polymer composites, acoustic wave, metal oxide and optical fiber arrays. Reactive, metalloporphyrin dyes have also been used as colorimetric sensor arrays (CSAs).
Erica R, Thaler +2 more
openaire +2 more sources
Colorimetric Sensor for ATP in Aqueous Solution
Organic Letters, 2007A new chromogenic complex 1.Zn has been synthesized, and its interactions with different biologically important phosphates have been investigated in aqueous solution (pH approximately 7.2). A visual color change can be detected on binding of ATP to 1.Zn, whereas no such change is observed when other biologically related anions (AMP, ADP, PPi, or ...
D Amilan, Jose +5 more
openaire +2 more sources
Visible Colorimetric Fluoride Ion Sensors
Organic Letters, 2005[structure: see text] Five new urea derivative naphthalene compounds were synthesized by a reaction of 1,8-diaminonaphthalene and the corresponding isocyanates and showed a distinct color change only when treated with fluoride ions.
Eun Jin, Cho +3 more
openaire +2 more sources
A colorimetric sensor array for odour visualization
Nature, 2000Array-based vapour-sensing devices are used to detect and differentiate between chemically diverse analytes. These systems--based on cross-responsive sensor elements--aim to mimic the mammalian olfactory system by producing composite responses unique to each odorant.
N A, Rakow, K S, Suslick
openaire +2 more sources
Novel colorimetric sensor for oral malodour
Analytica Chimica Acta, 2010Volatile sulphur compounds are the primary constituents of oral malodour. Quantitative tools for the detection of oral malodour are beneficial to evaluate the intensity of malodour, analyse its causes and monitor the effectiveness of customized treatments.
Nethaji, Alagirisamy +2 more
openaire +2 more sources
Nanomolar colorimetric hypochlorite sensor in water
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2019Hypochlorous acid is present in several biological systems and plays a pivotal role in bioprocesses. The acid also finds application in industrial and synthetic spheres. The ecological toxicity of elevated hypochlorite concentrations in aqueous media has been thoroughly documented.
Sanay, Naha +2 more
openaire +2 more sources
Colorimetric Sensors Measurement
2015Despite some successes with electronic nose systems as described in Chap. 4, the limited range of sensor analyte interactions limits both their sensitivity for detection of compounds at low concentrations relative to their vapor pressures and their selectivity for discrimination between compounds; the latter proves especially problematic in ...
Xiaobo Zou, Jiewen Zhao
openaire +1 more source
A bidentate borane as colorimetric fluoride ion sensor
Chem. Commun., 2004The bright yellow bidentate diborane (3), obtained by reaction of 10-bromo-9-thia-10-boraanthracene (1) with dimesityl-1,8-naphthalenediylborate (2), serves as a colorimetric anion sensor and selectively complexes fluoride with an association constant greater than 5 × 109 M−1 in THF.
Stephané, Solé, François P, Gabbaï
openaire +2 more sources
A colorimetric sensor array for the discrimination of Chinese liquors
The Analyst, 2020A simple colorimetric sensor array method is developed to identify various Chinese liquors in the liquid phase without the aid of other analytical techniques.
Shan Sun +4 more
openaire +2 more sources
A colorimetric sensor for Fe2+ ion
Inorganic Chemistry Communications, 2014Abstract A simple Schiff-based receptor 1 was synthesized and investigated its binding properties toward various metal ions in polar solvent (MeOH). Receptor 1 showed a dramatic color change from colorless to black which could easily be detected by the naked-eye upon binding with Fe 2 + .
Chang-Hung Chen +3 more
openaire +1 more source